US2150637A

US2150637A - Gathering ram

Info

Publication number: US2150637A
Application number: US66635A
Authority: US
Inventors: Harold R Schutz
Original assignee: Libbey Glass Inc
Current assignee: Libbey Glass Inc
Priority date: 1936-03-02
Filing date: 1936-03-02
Publication date: 1939-03-14
Anticipated expiration: 1956-03-14

Description

March v`1.4, 1939. y .H, R. scHuTz 2,150,637 V GATHERING AM K original Filed Maron 2, 19:56 6 shee'ysneet r1 I' lI March 14, 1939.' H.` R, SCHUTZ i 2,150,637

GATHERING RAM original Filed Marcha, 195e e/sheetsnee't 2 HA R. SCHUTZ GA'THERING` RAM March 14, 1939.

original Filed March 2, 193e e sheets-sheet 3 i Irmgard-0,1' 1 1 Miro/d 1 6 Sheets-Sheet 4;l

l E) ra/d H. R. SCHUTZ GATHERING'RAM March 1'4, 1939.

Original Filed March 2, 1936 Marh14,1939; H. SCHUTZ '4 2,150,637

GATH-ERING RAM original Filed March 2, 1936 e sheets-sneer 5v H. R. SCHUTZ GATHERING RAM March 14, 1939.

6 SheetS-Shet 6 original FiledMaroh 2; 195e Inlfe'n; or l? ddd/ Patented Mar. 14, 1939 "'FUNITED STATES PATE- NT OFFICE GATHERINGRAM j I Harold It. Schutz, Ottawa Hills, Ohio, assigner to Libbey Glass Company, Toledo, Ohio, a corporation of Ohio Application March: 2, 1936, serial No. 66,635

- Renewed May 31, 1938 19 Claims.

This invention relates to a new and improved gathering ram, or more particularly an improved device for Agathering glass blanks from a pool of molten glass within a furnace and delivering these blanks to apparatus for shaping them into 'finished glass articles.

nA gathering device of this general type is disclosed in the patent to Brown et al., 1,874,168, granted August 30, 19322 In thispatented device, a gathering mold' in which suction may be applied is carried at thelower end of a diagonally positioned ram operated by uid pressure. This ram projects the gathering mold froman upper discharge position outside the furnace inwardly and downwardly toa,gathering position in which the mold is in contact with the surface glass of the molten pool within the furnace. Suction is then exerted within the mold yto draw molten 4glass into the mold, and the ram then operates to withdraw the mold along its original path to the upper discharge position outside the furnace. Soon after the mold has been lifted from'the molten pool a knife operates to cut off the trailing glass which falls back into the pool. When the mold reaches its upper discharge position, outside the furnace, the mold opens and a puff of air is admitted to force the glass blank from the mold into a spindle positioned at'this time beneath the mold. The cycle of operations of the ram is then repeated.

It will be noted that each contact of the metallic gathering mold with the molten glass tends to chill the remaining glass within the pool, and this gathering contact always takes place at the same spot within the pool. Furthermore, the

' trailing glass that is cut off from the gathered blank and which falls back into the pool tends to impair the quality of the remaining molten glass, and this glass should be carried away from the gathering position until it has been completely re-rnelted. For these reasons it is desirable to set up a flow of molten glass within the glass pool of the furnace so that fresh glass will always be presented to the gathering mold.

According to the present improvements, the gathering mold is projected further into the furnace than was formerly the case so that the mold enters the glass and gathers its charge at a location more remote from the front wall of the furnace. The mold is then withdrawn horizontally toward the front wall while still in contact with the molten glass thus creating a flow of molten glass in this direction. The mold with its charge is then withdrawn as before to the upper outer discharge position, the cut-o1f device operpool .at a point further removed from the gathering position, and a flow of the molten` glass is set up in such adire'ction asV to removethis trail-v ing glass from the gathering position rather than permit it to flow thereto. These added movements of the gathering device are accomplished by mounting the' gathering ram on .a carriage which is moved transversely, toward and from the furnace, in vtimed relation to the movementsof the ram so that the mold vvtravels through .a closed pathsubstantially inthe vform of a parallelogra'm having two long diagonal sides and two short horizontal sides.` 1mproved means are provided for operating the ram and'carriage and the valves which control the fluid pressure in properly timed relation to cause .the mold to' move-and function in the proper manner.

The principal object of this invention is to provide an improved glass gathering device of V,the type briefly described hereinabove and disclosed more in detail in follow.` A .n

Another object is to .provide improved means for moving a gathering mold through an endless closed path during a portion of which the specifications which travel the mold will be` in` contact with the molten glass of the pool.

Another object is to provide improved. means for setting up a flow of molten glass within the tion will be more apparent from the following.

detailed description of certain approved forms of apparatus constructed and operating according to the principles of the invention.

In the accompanying drawings:

Fig.' 1 is a side elevation of the improved gathering ram and associated parts, a portion ofthe furnace being shown in vertical section, and parts of the glass-working machine on which the ram is mounted and with which the ram cooperates being indicated.

Fig. 2 is an'enlarged horizontal section through a portion of the furnace, this view being taken substantially on a line 2-2 of Fig. 1.

Fig. 3 is a vertical section taken substantially on the line 3--3 of Fig. 2.

Fig, .4 is a plan view of the operating and controlling mechanism, with the ram and portions of the carriage removed to facilitate the disclosure.

Fig. 5 is a side elevation of the ram and carriage with most of the control mechanism removed, the view being taken substantially on the line 5-5 of Fig. 4.

Fig. 6 is a detail end elevation, looking from the right at Fig. 5, and showing a portion of the locking mechanism.

Fig. '7 is a detail vertical section, on a arger scale, taken substantially on the line 'I` of Fig.4.

Fig. 8 is a, detail vertical section, on a larger scale, takem substantially on the line 8-8 of Fig. 4.

Fig. 9 is a detail vertical section taken substantially on the line 9 9 of Fig. 8.

Fig. 10 is a diagrammatic view illustrating the different operative positions of the gathering mold.

Fig. 11 is a transverse section, on a larger scale, taken substantially on the line II--II of Fig. 1.

Fig. 12 is a partial plan view showing mechanism for oscillating the ram and carriage assembly horizontally, when this improved gathering device is used in'connection with a different type of glass-Working machine.

Fig. 13 is a partial vertical section taken substantially on the line I3--I3 of Fig. 12.

Referring first to Figs. 1 to 11 inclusive, the improved gathering mechanism is shown as used with a glass-working machine of the' type disclosed and claimed in the ftent of this same inventor, 2,030,328, granted February 11, 1936. In a machine of this type a pair of similar glassworking heads I and 2 are independently oscillated about the central vertical axis .'r, through opposite angles of each, from the glass Working station at which the head I is now located to the blowing station at which the head 2 is now located. (Fig. 1.) When at the gathering station, the clamping jaws 3 at Vone end of spindle 4 will be turned upwardly so as to receive the glass blank 5 when this blank is dropped from the gathering mold 6 (which forms a portion of the gathering mechanism and will be hereinafter described more in detail). The head I now swings from the position shown in Fig. 1 to the position now occupied by the head 2, and during this movement the spindle 4 is invertedso that the glass blank will hang downwardly and by this time it will have been partially expanded into a hollow parison as indicated at 1. This parison is now enclosed in a finishing mold and blown to the desired form. The operation of this glassworking machine forms no part of the present invention and need not be further described. It is sufficient to note that in this type of machine the spindle which receives the glass blank is stationary at the time the blank is discharged thereto from the gathering mechanism so that it is unnecessary to provide any means for oscillating or moving the gathering mechanism horizontally while this transfer is taking place. Means for imparting this additional movement to the gathering device will.be described hereinafter.

It might be here noted that in most types of glass-working machines with which this ram will be used the spindles 4 are arranged in pairs, the two spindles of each pair being operated simultaneously and carried through the same series of steps, simply for the purpose of doubling the capacity of the machine. Accordingly it is necessary to provide two gathering molds 6 which are positioned side by side and operated simultaneously by the same set of operating mecha- -nisms. `It is simpler to describe the machine and its operation as if there were only one gathering 'portions of cylinder 22.

mold 6, and this procedure will be followed for the most part hereinafter.

On the top frame 8 of the glass-working ma.- chine are mounted three tracks 9, I0 and II (Figs. 1, 4, 5 and 11). The short tracks 9 and I9 are extensions of one another and 'arranged parallel to the single track I I. The two tracks 9 and I0 are used in order to provide room for the airconduit I2 which forms a part of the glass-working machine. Were it not for this conduit, a single track similar to II could be substituted for the two tracks 9 and I9. The carriage indicated at I3 is provided with a front axle I4 on which are a pair of rollers I5 and I6 resting on the tracks 9 and II respectively. One of these rollers, such as I5, is provided with side iianges I'I to prevent the carriage from running off the tracks laterally. The rear legs I8 of the carriage are provided with rollers I9 which travel on the tracks I I and I0. These rollers I9 may be similar to the front rollers I5 and I6. Guide rails 20 are supported above each of the tracks by end posts 2I so as to hold the carriage down on the tracks.

The carriage I3 is reciprocated back and forth along the trackways 9, I0 and II by means of a motor 22, here shown as a huid-pressure cylinder having a piston 23 connected by a piston rod 24 with a portion of the carriage as indicated at 25. (See Fig. 4.) Fluid under pressure is delivered from a suitable source of supply through pipe 26 into the supply chamber 21 of the distributing valve indicated generally at 28. Supply ports 29 and 30 communicate with supply chamber 2I, and pipe connections 3I and 32 extend respectively from these ports to the end The slide valve 33 movable in chamber 2'I isv adapted to alternatively cut off one of the ports 29 or 3|] .from the supply chamber and connect this port through passage 34 with the disch-arge vent opening 35. The supply pipes 3| and 32 connect through discharge ports (one of which is shown at 36) with the interior of cylinder 22 near the ends thereof. With the slide valve 33 in the position shown in Fig. 4, fluid pressure entering through pipe 26 will pass through port 29 and pipe connection 3| into the left-hand end of cylinder 22 and shift the piston 23 to the position shown in the drawing, thereby moving carriage I3 and parts carried thereby toward the right or away from the furnace. As the piston 23 nears the end of the Ycylinder it will close the main port 36 through carriage is moved back tow-ard the furnace.

At 38 (Figs. 1 and 4) is shown a vertical drive shaft that extends upwardly through one of the corner posts or standards 39 of the glass-Working machine, this shaft being driven at its lower end from the machine so that the cam disk or holder 40 carried at the upper end of shaft 38 will be The general cam r ldevice 61 is brought about ata predetermined and link 42 with one end of a lever 43 pivoted at 44 on a fixed frame member. This lever also comprises

arms

45 and 46 which carry rollers 41 and 41' respectively. A pair of cams 48 and 49 adjustably carried by thecam assembly 4D are adapted to successively engage the rollers 41 and 41-. The cam assembly 40 rotates in a clockwise direction as seen in Fig. 4, and the cam 48 .is about to engage the roller 41 and shift the slide valve 33 so that the carriage I3 will be moved toward the furnace. After a predetermined interval of time the cam 49 will engage the roller 41;' and shift the valve back to the position shown in the drawings whereupon the carriage I3 will be returned away from the furnace to the position now shown.

The gathering-ram mechanism 'which is mounted on the carriage I3 is essentially the same as the mechanism disclosed in the Brown et al. patent hereinabove referred to, and is now well known in the art. The well-known features of this mechanism will, therefore, be only briefly described. A cross-head assembly 50 (see particularly Figs. l, 5,'10 andll) which'carries the pair of gathering molds 6 and associated parts is shiftable along guides diagonally posil tioned on 4the carriage I3 so that the mold 6 will be reciprocated between the outer and upper discharge position shown in solid lines inl Fig. 1 and the lower and inner gathering position with the molds in contact with the glass of the molten pool. The'cross-head assembly is connected with piston rod I which extends to the piston within a fluid-pressure cylinder 52. Pressure fluid is admitted alternatively to the endsV of cylinder 52 under the control of

valves

53 and 54 which are connected by rod 55 so that the valves will be simultaneously shifted in opposite directions to admit pressure fluid to one end of the cylinder and exhaust the uid from -the other end. An operating rod 56 extending from one of the valves connects at 51 with one end of an operating lever 58 intermediately pivoted at 59. -An operating rod 6|] connects with the lower end of lever ,58, this rod 60 being operated from the cam assembly 40 through connections that will be hereinafter described. n

The gathering mold 6 is formedwith a suitable cavity into which the molten glass is drawn, this cavity being open at the bottom but normally closed by the swinging closure plate 6I. closure is held in the closed position shown at the left of Fig. by an operating rod 62 extending from the pressure cylinder 63. However, as the mold reaches the upper or discharge end of its path of travel, alever 64 pivoted on the crosshead at 65 andv connected at its upper end with operating rod 62 engages at its lower end with a fixed stop 66 thereby swinging the closure 6I downwardly to the position shown insolid lines in Fig. l Ito permit the discharge ofthe glass blank 5. As the mold 6 starts to movev downwardly into the furnace andthe lever 64 moves away from the stop 65, the pressure cylinder' will immediately close the swinging closure 6I and hold it in this position until the mold again returns to the discharge position. It will be understood that the closure 6I is provided with a central opening through which molten glass is drawn up into the mold when suction is applied. A swinging knife or cut-off device indicated at 61 is adapted to move beneath the opening in closure 6I and cut-off the trailing glass shortly after the gathering mold rises from the molten pool, as will be hereinafter referred to. The action oi cut-off This l point in the upward path of travel of the mold by the engagement of xed and moving members,

similar to the operation of the closure. Such elements as the closure and cut-off device, which are operated by the reciprocations of the crosshead do not require any change over the constructions now known and disclosed in the Brown patent- However, those mechanisms' which are controlled from the cam assembly 40, which does not reciprocate with the carriagel I3and parts carried thereby, have been provided with novel operating connections to permit these relative movements. These connections will be hereinafter described in detail.

It will be understood that the molds 6 and those parts of the apparatus that are brought into the furnace or in close proximity to the molten glassa're internally water-cooled. The provisions for water-cooling the parts are well known and need not be here described.

When the mold 6 has been brought into engagement with the surface glass of the molten pool, thecavitywithin the mold must be connected with an exhausting means so as'to withdraw the air and permit the mold to be Afllledvwith molten glass. This vacuum connection is controlled by a valve 68 supported at the upper end of. cylinder 52v and operated by an intermediately pivoted lever 69 (see Figs. 1 and 5). When the mold 6 is raised` to the discharge position shown in Fig. 1, a puff of air'under'pressure is admitted to the mold to assist in discharging the glass blank 5. This air presure is controlled by a second valve 10 yoperated by lever 69 when swung in the opposite direction." The movements of lever 69 are controlled by an operating'rod 1I, Aas hereinafter described. i

A suitable locking mechanism (Figs.` ,1, 5 and `6) is provided for positively holding the ram and carriage in their withdrawn positions, if so de- `sired. *A locking .lever 12 is pivoted at 13 in the carriage frame I3, and when elevated is adapted to engage in a notch k14 `in a slide member 15 extending rearwardly fromr the cross-head 50. A link 16 connects locking lever 12 with one end of a lever 11 pivoted intermediately at 18'on the carriage. The other end of lever 1 1 carries a downwardly projecting locking hook '19 adapted to engage a xed lug 8l!` and prevent movement of carriage I3 toward the furnace.v A roller 8I on the outer end of lever 11 rests on a track section 82 which is pivoted at 83 and connected through link 84 with an eccentric 85 on a cross-shaft 86. A hand lever 81 on the opposite end of this shaft i Fig. 6) is adapted to turn the eccentric so as to move the track section 82 fromthe position shown in Fig. 5 to an upperV position in which it aligns with a xed track section 82'. When the machine is in normal operation, the hand lever 81 is moved in such a direction as to elevate the track section 82 and lift the roller 8I. The roller 8| will now run back and forth along the aligned,

track sections 82 and 82' as carriage I3 is reciprocated. This movement of lever 11i will pull down on link 16 and release thev locking lever 12 so that the ram may reciprocate cross-head 5I). When hand lever 81 is thrown in the opposite direction so as to,lower the track section 82, the hook 19 will fall into engagement with xed lug 86 thus locking the carriage against movement and at the same time the locking lever 12 will be moved up into notch 14 so as to look the ram.

The cam-operated mechanism for moving the several valves on the ram and carriage will now be described (referring more particularly to Figs. 4, 5, 7, 8 and 9). A supporting bracket V88 is xed at 89 on one side of carriage I3, and a slide member 90 is mounted in a slideway 9| in the outer end portion of this bracket. A post 92 on the upper face of slide 90 has a swivel connection at 93 with the lower end of the operating rod 60 which controls the movements of ram operating lever 58,.and hence the reciprocations of the cross-head 50.` A second slide 94, positioned beneath the rst mentioned slide 90, is mounted in slide-.way 95 in the xed bracket or standard 96. A post or stud 91 projecting downwardly from the upper slide 90 carries a roller 98 lwhich engages in a slot 99 extending longitudinally in the lower slide 94. Lower slide 94 is connected through operating link |00 with one end of a lever I0| fulcrumedat the other end |02 in a fixed frame member. A roller |83 on lever |0I is adapted to be successively engaged by a pair of cams |04 and |05 carried by the cam disk 40. The swinging movements of lever I0| imparted by the engagement of cams |04 and |05 with roller |03 will shift the slide 94 longitudinally in one direction or the other through a short distance.

As the carriage I3 moves back and forth through its horizontal path of travel, the bracket 88, slide 90, roller 98 and link 60 will move with the carriage without any movements being imparted to the link 60 so as to swing the operating lever 58. The roller 98 Will simply travel from one end to the other of the slot 99 in slide 94. However, when the cross-head and gathering molds have been retracted to the upper position shown in the drawing, the roller 98 will have moved to the right-hand end of the slot 99 (Fig. 7). Now rotating cam 48 will first engage the roller 41 and cause the carriage I3 to be shifted toward the furnace so that roller 98 on slide 90 will move to the other end of slot 99. Soon thereafter the rotating cam |04 will engage the roller |03 and shift the lower slide 94 toward the right (Fig. 7) thus moving roller 98 and slide 90 and shifting operating lever 60 so as to swing the lever 58 and operate the

valves

53 and 54. As a consequence the gathering molds will be moved downwardly into the furnace. After the blank has been gathered, cam 49 will engage roller 41 and as a result the carriage will be shifted back to the position shown in the drawing thus causing the movement of the molds when in contact with the molten pool, as hereinafter described.` Immediately thereafter the cam |05 will engage the roller |03 and shift the slide 94 toward the left (Fig. 7). In the meantime roller 98 has `been moved to the right-hand end of slot 99 by the last mentioned movement of the carriage so that when slide 94 is shifted to the left roller 98 will also be pushed in this direction and will operate link 60 to reverse the

positions Aof valves

53 and 54 and cause the molds 6 to be Withdrawn from the furnace.

The fixed standard 96 carries a bracket |06 projecting toward the carriage I3 and formed with a guideway |01 in which a slide |08 moves. This slide is connected through link'I09 with one end of a lever I|0 pivoted in the fixed frame at III and carrying on its other arm a roller II2 which engages in a cam slot I I3 in the upper surface of cam disk 40.

The operating rod 1I which extends from the lever 89 which controls the vacuum and air connections to the gathering mold has a ,swivel connection at its lower end I I4 with the lever arm I I5 secured on the upper end of a vertical shaft I I6 journaled in a bracket ||1 on the carriage. A crank arm ||8 on the lower end of shaft I I6 carries a roller I|9 adapted to move in a slot |20 formed in the upper surface of slide |08 transversely to the direction of movement of this slide (see Figs. 4 and 8). It will now be seen that as the carriage moves oack and forth the roller |I9 will simply slide longitudinally in slot |20 without imparting any movement'to the operating rod 1I. However, .if at any time the slide |08 is moved longitudinally of its slideway |01, a swinging movement will be imparted to crank arm I|8 and thence through the link and lever connections described above the operating rod 1I and lever 09 will befoperated to operate the valves.,|38 or 10 and connect either vacuum or air with the interior of the gathering mold. As long as roller I I 2 is in the neutral portion I2| of cam path I I3, both

valves

68 and 10 will be closed. When roller II2 moves into the section |22 of the cam path, the valveA 68 will be opened to make vacuum connections with the interior of the mold, this suction being maintained until the roller II2 passes into the portion |23 of the cam path, at which time the suctionwill be cut oi and a puff of air will be directed into the mold to blow out the glass blank 5. Obviously the cam path I|3 may be made adjustable so as to change the relative positioning of the cam sections on disk 40 and the length of time that the vacuum is applied.

A complete cycle of operations will now be described, referring more particularly to Fig. l0 in which successive positions of the gathering mold 6 are indicated at a. b. c. d and e respectively. We will assume that mold 6 is now in the position shown in solid lines in Fig. 10 at a. The carriage I3 will rst be operated to shift the entire ram mechanism, and consequently the mold 6, forwardly to the position indicated at b. Immediately thereafter the ram cross-head will be projected downwardly and inwardly so as to carry the mold from the position shown at b to the position shown at c. As this movement starts, the closure 6I will be swung up to closed position, and immediately after the mold has come in contact with the surface of the glass pool |24 as shown at c, the valve 88 will be operated to apply suction within the mold and draw a charge of molten glass from pool |24. The carriage I3 will now be retracted to draw the entire ram mechanism away from the furnace, and this will cause mold 6 to move from the position c to the position d. During this movement the lower portion of the mold is still in contact with the molten glass in the pool, and this will set up a flow of glass within the molten pool in the direction of the arrow (Fig. 10). After the mold has reached the position d, the ram will be operated to withdraw the mold along its upward and outward path and as the mold reaches the position indicated at e the cut-oli knife B1 will be operated to separate the trailing glass from the charge in the mold. this trailing glass dropping back into pool I 24. As mold 6 reaches the original position a, the closure 6I will be swung openA and a puff of air will be applied to blow out the blank 5 which will drop into engagement with the spindle 4 as shown in Fig. 10. This cycle of events will now be repeated.

Referring now to Figs. 1, 2 and 3, the furnace indicated generally at |25 has an opening |26 in its front wail |21, from which opening a boot |28 projects inwardly and downwardly and in some locations below the surface of the molten glass as indicated yat |29, so as topartially segreandes? gate the pool of molten glass |24 from which the blanks are drawn.. The boot |28 has side extensions-|30 and |30 each formed with passages` I 3| and |32 through which-glass from pool|24 canficw outwardlyadjacent the wall |21, of the furnace,back into. the main bodyiof ,glass.'|33 within the furnace. .This circulation'of4 glass is:v acceleratedby a pair of rotary propellers |34 carried by shafts and driven in anyzsuitable pool through passages' |3| and-|32, therewill be 4 an upward flow` of glass .from thecentral por-y tion` of the furnace under the submerged portion |29 of 4the boot to replace this withdrawn-glass.` The boot |29 will act as aV skimmer to prevent surface impurities from entering the.,molten pool.

, At |36 (Fig. '2) are indicated thepositions at which the gathering molds ,55-ilrstgcontactjwith` the` molten pool, the blanks being ,withdrawn The molds are then moved while `still in contact `with theglass' y the molten glass is subjected, is minimized.

from the pool at these positions.

to thepositions |31, that is toward the front wall |21'of the furnace, thus helpingto create.

a, forward `flow of .glass within the pool. vThe molds'commence to rise upwardly and .outwardlyy fromthe pool and when they have reached positions over the points |38.the cut-offknves 61 are operated to causeth'e trailingglass to drop It will nowl be noted thatthis trailing glass' is :dropped back into they pool back. into the pool.

atquite ai-distance'from `the positions |36 at which the glasssblanks are drawn, and thecir-A culation created within the pool causes this cutoff glass to ilow outwardly adjacent the front wall. and back intothe main body of vglass |33 in. the' furnace where this cut-off glass becomes ,thoroughly lre-melted.

The gathering mechanism as `thus far de# scribed is adapted for cooperation with any glass i working machine in which the spindles orparts to which the-blanks are to bedelivered are sta= accomplish this, the entire ram assembly may be oscillatedhorizontally, while the transfer is being made, as disclosed in the Brown patent herernounted on a platform |39.` which is DiVOted about the central axisy of the glass-workingv machine.`

It will be understood that the tracks whichcarry the carriage` |3 are mounted onplatform |39, or

|39 will not move andv it is duringthis time that theglass-gathering operations hereinabove described take place. VAs the roller |48 enters the eccentric portion 5| of the cam slot the plate" form |39 will` be swung about-the pivot ll/(in a clockwise direction)Y synchronously with `-the 'f movement of the rotaryglass working elements so 'thatvthe molds 6 will be traveling above the' original @position afterxwhich another blank# y gathering operationfis performed.

vSince thev lateral swinging movements of the drawn fromthe furnace, `the width of 'furnace opening |26 need not be increased toVprovide for y 'l5 ram' takeplace while `the ;ram is entirely with-A this swinging movement. Furthermore the -placent to permit .the in an'd out reciprocating'mo'vements o'f'the| ram. In this'way the area of the exposed glass and consequently the chill to which 1; In combination with a furnace containing-a pool of molten glass, the furnace having an inlet openingy in the front wallthereof, aVv machine for drawing' glass blanks comprising la gatheringv mold, means for drawing into and expelling a* charge of glass from the mold, andm'eans for movingthe mold through-.a closed path in a substantially vertical plane which includes proinlet opening and into drawing engagement with zontally vtoward the kfront wall' ofthe furnace withdrawing the mold from the furnace.

2. In a machine for gather-ingglass blanks from a pool of molten glass within-va furnace', a gathering mold, means for drawing" into and expelling a charge of glass `from said mold, a ram mechanism for reciprocating the mold between an upper outer discharge `position and' an -inner .lower drawing position with the mold inengagement f with the glass of the pool, a carriageon which the ram mechanism is mounted, a support for they carriage, means for reciprocating Vthe carriage horizontally toward and from the furnace, and

means for soxtiming the movements of the ram and carriage that the mold will be successively l shifted inwardly toward the pool, then inwardlyV and downwardly into drawing position, then horizontally outwardly .through the `molten glass and then upwardly and' outwardly to discharge position.

3,.V In a machine `for gathering glass blanks from a pool of molten glass within a furnace, la gatheringimold'means for drawing into and expelling a charge of glass from said mold, a ram mechanism for reciprocating -the mold between an upper. outerfrdischarge position andan inner lower drawing position with th'eniold in engagement with the glass' of the pool, a carriage on which the ram mechanism is mounted, a fluid pressure cylinder on `the-.carriage for reciprocating .the ram, a support for the carriage, a fluid pressure cylinder on the support for reciprocat` ing the carriage horizontally, toward and from 35 jecting the mold into thefurnacethrough the 40 while still inglassedrawing position and then i i# the cylinders, and timing mechanism controlling the valves so thatfthe cylinders will be alternately actuated to project the mold inwardly toward the furnace, then downwardly into glass-drawing ciprocating the ram, a support for the carriage, aV g fluid pressure cylinder on the support for reciprocating the carriage horizontally toward and from the furnace, lvalve mechanisms for selectively admitting pressure fluid to the respective ends of the cylinders, a rotary cam assembly, and

"connections between the cams and valvesv for operating the valves in timed relation to one another, so that the mold will be successively shifted inwardly toward the furnace, then downwardly into glass-drawing position, then horizontally outward through the molten glass, and then upwardly and outwardly to discharge position. r

5. In combination, a machine for gathering glass blanks from a pool of molten glass within a furnace, a gathering mold, means for drawing about the center of rotation of the glass-working..`

into andv expellinga charge of glass from said mold, a ram mechanism for reciprocating the mold between an upper outer discharge position and an inner lower drawing position with the mold in engagement with the glass of the pool,

a carriage on which the ram mechanism is mounted, a continuously rotary glass-working machine comprising a fixed supporting frame, a supporting plate Oscillatable on said frame machine, the carriage being mounted on Athe plate for reciprocationl radially of the center of rotation toward and from the furnace, and means for so timing the movements of the ram, carriage and supporting .plate that the mold will be successively moved into the furnace into drawing engagement `with the pool, then moved horizontallywhile within the furnace Aand in engagement with the lglass, then withdrawn from, the furnace, and then oscillated about the center f rotation so as to travel for a time withthe glass working` machine.

6. In a machinelffor gathering glass blanks from apool of molten glass within a furnace, a

gathering mold, fluid pressure means for drawing into .and expelling a charge of glass from-:the mold, valve means for controlling the last mentioned means, a ram mechanism for reciprocating the mold between an upper outer discharge position and an inner lower drawing position vwith the mold in engagement with the glass of the pool, a carriage on which the ram mechanism is mounted, afluidpressure cylinder on the carriage for reciprocating the ram, a support for the carriage, a fluid pressure cylinder on the support for reciprocating the carriage horizontally towardand from the furnace, valve mechanisms for selectively admitting pressure fluid to the respective ends of ithe cylinders, and timing mechanism controlling the several valvesv so that the mold will be successively projected inwardly toward the furnace `and downwardly into gathering engagement with the glass pool,a charge of glass will be drawn into themold, the mold will be withdrawn horizontally while within the furnace and in glass-drawing position, the mold will then be withdrawn upwardly and outwardly from the furnace, andthe glass blank will be expelledl from themold.

7. In a` machine for gathering glassl blanks from a pool of molten glass within a furnace; a.

pool, a carriage on which the ram mechanism isl mounted, a fluid `pressure cylinder on the carriage for reciprocating the` ram, a support for the carriage, a fluid pressure cylinder' on the support for reciprocatingzthe carriage horizontally toward and from the furnace, valve mechanism for selectively admitting pressure fluid to the respective ends of the cylinders, a rotary cam assembly, and connections between the cams and* the several valves so that the mold willv be successively projected inwardly toward the furnace and downwardly into gathering engagement with the glass pool, a, charge of glass will be drawnV into the mold, the mold l,will be withdrawnhorizontally while within the furnace'and in glassdrawing position,. the mold will `then be withdrawn upwardly and outwardly from the furnace, and thev glass blank will be expelled fromA the mold.

8. In combination with awful-nace containing molten glass, the furnace having an inlet opening in the frontwall thereof above' the glass-level, means for partially segregating a molten pool of glass adjacent the inlet opening, means for causing the molten glass adjacent the front wallto 'flow laterally from the pool; a machine for gathertoward the front wall.

9. In` combination with a furnace containing molten glass, the furnace having an inlet opening in the front wall thereof above the glass level,

means for partially segregating'a molten pool of glass adjacent the inlet/j opening, .mechanically moved propellers positioned `adjacent the sides of the pool for causing the moltenglass adjacent the front wall to flow laterally from the pool, a machine for gathering glass blanks `comprising ay gathering mold, means for projecting thev mold into the furnace throughthe inlet opening andn into engagement with the glass of the pool at a location remote from the front wall, and means for withdrawing the mold horizontally while in glass-drawing position to cause a flow `of glass within the pool toward the front-wall.

10. In combination with a furnace containing apool of molten glass, the furnace having an inlet opening in the front wall thereof, a machine for forming `glass articles comprising a plurality of glass-working spindles movable into and out of position adjacent said inlet opening, a gathering" mold, means for drawing into and expelling a charge of *glass from the mold, and means for movin-the more through the `inlet Aripening'T from an upper *discharge position: l"above one-of the spindles tol an inner.. lower drawi'rrgf-fpo'sitionin engagement with the;mo1ten .glass v`andkthenre'- turning the mold totheafdischargeposition, said moving means comprising means for reciprocating the mold inwardly and downwardly and theny up'- wardly-and outwardly, and other means forreciplocating the` mold horizontally,.the movements orfsaid ,two reciprocatingrineans i and said glass# drawing means being'rso .timedw'that the mold-will be',withdrawn horizontally towardr the frontwall .mentfwithxtheiglasszof the pool after thecharge l ,a u engagement with' the glass of the pool, ythen withdrawn horizontally toward the front wallfwhile in glass-drav'ving` position so as toy cause a flow :of molten glass toward the front wall', then -withf drawn lfrom the p'ool tothe starting position above y v the path of travel o f 4the"spindle1s',then swung.

, horizontally vaboveY and' in synchronisml with a" spindle whilev a glass blank isy beingl transferred l. frornthemold to thespind'le-,fand then swungback of glass has been 'drawn into themold.

11.' In combination with a 'furnacefc'o'ntain'- ga g pooloffmoltenglasa the furnace having aniinletopening in `the' front wall' thereof a machine for forming glass articles comprising a'-plurality of.

glass-working spindlesy-'movabie'il 4continuously.

throughout a -circularpatha portion "of which is adjacentk ther inlet opening, angatheringjrvmold, means forsdrawing into and expelling'a charge of g glass from the mold, means forreciprocati-ngthe mold inwardly and downwardlydandVthe'n up?" wardly; and outwardly, means for'reciprocating the moldhorizontally., and means for swinging'the mold, through a `horizontal aroaboveth'e path of `travel of the spindlesthe-s'everal moving means and the glass-drawing meansbeing so 4'timed that the mol'dlwill-be projected through the inlet opening into the furnace and into drawing engagement withthe glass of the p ool, a charge of glass will be drawn into the mold, the mold will then be Withdrawn horizontally toward the front wall of the furnace while still in engagement with the molten glass, then withdrawn from the pool to the starting position above the l path of travel of the spindles, then swung horizontally above and in synchronism withv a spindle while a glass blank is being transferred from the mold to the spindle, and then swung back to the starting position.

12. In combination withl a furnace containing molten glass, the'furnacehaving an inlet opening in the front wall thereof, a boot extending inwardly and downwardly from around the inlet opening so as to partially vsegregate a pool of molten glass adjacent the inlet opening, mechanically moved propellers for causing the molten glass adjacent the front wall to ow laterally from the pool, a machine. for yforming glass articles comprising a plralityfof glass-working spindles .movable into and out of position adjacent the inlet opening, a gathering mold, means for drawing into and expelling a chargeof glass from the l mold, means for moving the .mold through the inlet opening from an outer upper discharge position above oneof the spindles to an inner lower drawing position within lthe boot and in engagement with the molten glass of the pool and then returning the mold to th'edischarge position, and

means for moving themold toward the front wall of the 'furnace while `in glass-drawing position, during the first-portion of the return movement so as to vcause a flow of molten vglass toward the front wall of the furnace.

13. In combination with a furnace containing molten glass, thefurnace having an inlet openingin the front wall thereof, a boot extending inwardly and downwardly from around the inlet opening so as to partiallysegregate al pool of molten glass adjacent the inlet opening mechanically moved propellers. for causing the molten glass adjacent the front wall to flow' laterally from the pool, a machine for forming glass articles 'i to thestarung position.'

a portionof which is adjacent theinlet opening,

wardly and then upwardly vand outwardly, means a gathering mold, rvmeans fordrawing'into and expelling a-'charge'fof glass from the mold, means for A'r'.'eciprocating the; mold inwardly and down.

forf reciprocating-themold horizontally toward :l

and from thefrojrit wall of the furnace, and means for swinging :the 'mold through `a horizonta-larc above the path of Atravel of' the spindles, 'the several"mold"moving means being so'gtir'nedK that thev of the furnace fora distance whuelsuufm engager# mold `will be 'successively projectedthroughy theinlet vopening-into;the furnace andy into drawing 14.l In.' a machine 1 for gathering 'grass maninek from apoolof molten glassl within a'furnace',''a

gathering mold, means for drawing into and ex-A pelling'a charge of glass fromsaid mold, a fixed supporting iframe; and"r'ne`cl ianismjf or"moving] l said moldf through a closedjpath in vja-verti'cal plane', sai'dpath 'including a lower horizontal' runl extending backwardly toward the supportingl frame, said mechanism comprising a carriage movably mounted on the frame, means for reciprocating the carriage horizontally in the vertical plane of the path, a ram mounted on -the carriage and supporting the mold, means for reciprocating the ram in the vertical'fplane of the path between an upper and a lower position, and means for timing the lreciprocations of the ram and carriage alternately.

15. In a machine for gathering glass blanks from a pool of molten glass within a furnace, av

gathering mold, means for drawing into and expelling a chargevof glass lfrom saidmold, a fixed supporting frame, and mechanism for moving said mold through a closed path in a vertical plane, said path including a lower horizontal run,

ysaid' mechanism comprising a carriage movably mounted on the frame, means for reciprocating the carriage horizontally in the vertical plane of the path, a ram mounted on the carriage and supporting the mold, means for reciprocating the ram in the vertical plane of the pathy between .an

tical plane of the path, a' ram mounted on the carriage and supporting the mold, means for reciprocating the ram in the vertical plane. of the path outwardly and downwardly and then inwardly and upwardly between an upper and a lower position, and means'for timing the move-v ments of the ram and carriage alternately.

`movably mounted on the frame, means for reciprocating the carriage horizontally in the ver- 17. In a machine for gathering glass blanks from a pool ofmolten glass within a furnace, a gathering mold, means for drawing into and expelling a charge of glass from said mold, aixed supporting frame, and mechanism for moving said mold through a closed path in a vertical plane, said path including a lower horizontal run, said mechanism comprising a carriage movably mounted on the frame, means for reciprocating the carriage horizontally in the verticall plane of the path, a ram mountedfon the carriage and supporting` the`mold, means for `reciprocating the ram in thervertical plane ofthe path outwardly movably mounted on the frame, means for reciprocating the carriage horizontally in the vertical, plane of the path, a ram mounted on the carriage and supporting the mold, means for reciprocating the ram in thevertical plane of the path between an upper and a lower position, and

, Vmeans for causing alternate actuations of the respective means for reciprocating the carriage and ram in such order that the carriage will first be shifted outwardly, then the ram rwill be shifted downwardly, then the carriage will be withdrawn toward the frame and then the ram-will be with` drawn upwardly.

19. In a machine for gathering glass blanks from a pool of molten glasswithin a furnace, a gathering mold, means -for drawing into'and expelling a charge of glass from said mold, a xed supporting frame,l and mechanism for moving said mold throughA a closed path in a vertical plane, said path including a lower horizontal run extending .backwardly toward the supporting frame, said mechanism comprising a carriage movably mounted on the frame, means for.V reciprocating the carriage horizontally in the vertical plane of the path, a ram mounted on the carriage and supporting themold, means for reciprocating the ram in the vertical plane of the path outwardly and downwardly and then inwardly and upwardly between an upper and a lower position, and means for causing alternate actuations of the respective means for reciprocatingthev carriage and ram in such order that the carriage will first be shifted outwardly, ythen the ram will be shifted outwardly andvdownwardly,

then the carriage will be withdrawn toward thel frame and then the ram will be withdrawn upwardly and toward the frame.,`

HAROLD` R. SCHUTZ.